Dr. Naji Aljohani

Dr. Naji Jameel Aljohani, MD, FACE is a Saudi Consultant and Assistant Professor of Endocrinology, specializing in diabetes, endocrinology, metabolism, thyroid diseases, and thyroid oncology. He is based at King Fahad Medical City (KFMC), Riyadh, within the Obesity, Endocrine and Metabolism Center.

Current Position

• Consultant & Assistant Professor of Endocrinology and Thyroid Oncology
• King Fahad Medical City (KFMC), Riyadh
• Obesity, Endocrine and Metabolism Center
• Academic affiliation with King Saud bin Abdulaziz University for Health Sciences (KSAU-HS).

Education & Qualifications

Dr. Aljohani has completed extensive postgraduate training and professional certifications, including:

• Saudi Board of Internal Medicine – 2005
• Arab Board of Internal Medicine – 2005
• Jordanian Board of Internal Medicine – 2005
• Canadian Fellowship in Endocrinology & Metabolism – 2008
• Canadian Fellowship in Thyroidology, University of Toronto – 2009
• Fellowship of the American College of Physicians – 2010
• Fellow of the American College of Endocrinology
• American Board of Clinical Lipidology – 2008
• American Board of Clinical Hypertension – 2009
• Diploma in Clinical Research, American University of Beirut – 2013
• Certified Bone Densitometry (CCD)
• Master of Health Administration, University of Minnesota
• Clinical Teaching Program Instructor, Stanford University
• Enhanced Communication Skills Facilitator, Mayo Clinic.

Areas of Expertise

His clinical expertise includes:

• Diabetes mellitus
• Endocrinology and metabolic disorders
• Thyroid diseases
• Thyroid oncology
• Obesity and metabolic disease
• Dyslipidemia
• Hypertension
• Bone health and osteoporosis

Research & Academic Contributions

Dr. Aljohani has an extensive research record. His ResearchGate profile currently lists 127 publications and more than 3,000 citations, with research interests including metabolism and glucose metabolism.

One of his notable research areas has been metabolic syndrome in Saudi Arabia. He was the author of a nationwide epidemiological study involving 4,578 Saudi participants aged 15–64 from 20 regions of the Kingdom, examining the prevalence and risk factors associated with metabolic syndrome.

He has also contributed to research concerning gestational diabetes, including a study investigating factors associated with the development of diabetes among pregnant Arab women with gestational diabetes.

Another important area of his research is diabetes health literacy and glycemic control. In a Saudi Medical Journal study, he and colleagues examined health literacy among Saudi adults with type 2 diabetes and its relationship with clinical factors.

More recently, he has contributed to research on diabetes awareness, lifestyle changes and diabetes management in Saudi Arabia, including studies examining the effects of COVID-19 lockdowns on people with type 1 and type 2 diabetes.

Clinical & Professional Contributions

Dr. Aljohani has also participated in national diabetes initiatives. He was among the specialists involved in workshops contributing to the Saudi Diabetes Clinical Practice Guidelines, representing King Fahad Medical City, Riyadh.

He has additionally participated in regional endocrinology and diabetes scientific meetings, including the Gulf Association of Endocrinology and Diabetes Clinical Congress.